Biography

Kakistos traveled to Sunnydale to hunt down Faith Lehane. The two had already faced each other in a fight that resulted in the death of Kakistos' pet alligators and him receiving a massive scar that ruined his right eye. In retaliation, Kakistos murdered Faith's first Watcher before a horrified Faith, who escaped to Sunnydale hoping to avoid Kakistos.

Trivia

It is possible that Kakistos is one of the oldest vampires in the series, perhaps even older than The Master himself. Both Rupert Giles and Diana Dormer (in Go Ask Malice,) note that he is particularly ancient because of his cloven hooves, (opposed to human hands and feet) features not shared with the Master.